• Title/Summary/Keyword: Un-structured

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A Study of Methodology for Automatic Construction of OWL Ontologies from Sejong Electronic Dictionary (대용량 OWL 온톨로지 자동구축을 위한 세종전자사전 활용 방법론 연구)

  • Song Do Gyu
    • Language and Information
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    • v.9 no.1
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    • pp.19-34
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    • 2005
  • Ontology is an indispensable component in intelligent and semantic processing of knowledge and information, such as in semantic web. However, ontology construction requires vast amount of data collection and arduous efforts in processing these un-structured data. This study proposed a methodology to automatically construct and generate ontologies from Sejong Electronic Dictionary. As Sejong Electronic Dictionary is structured in XML format, it can be processed automatically by computer programmed tools into an OWL(Web Ontology Language)-based ontologies as specified in W3C . This paper presents the process and concrete application of this methodology.

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Aesthetics of Japanese Avant-garde Fashion -Focusing on Planarization of the Body- (일본 아방가르드 패션의 미학 -몸의 평면화를 중심으로-)

  • Yim, Eun-Hyuk
    • Journal of the Korean Society of Costume
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    • v.57 no.1 s.110
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    • pp.50-65
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    • 2007
  • Clothes and human body are inseparably related. Aesthetic consciousness of the body determines the form of clothing, reflecting the time and culture as well as the individual and society. Clothes can even reorganize the meaning of the body, while transcending their instrumental functions of protecting, expanding and deforming the body. Using 'body' to analyze the clothing form, my study develops a framework by which to classify the planarization of the body in Japanese avant-garde fashion. In order to inquire the formative style and aesthetic values expressed in Japanese avant-garde fashion, my study examines subjects from the discourse on the body to the fashion collections of the 20th and 21st century. The results of the study are as follows. Japanese avant-garde fashion focuses on a planarization of the body which questions the three dimensional construction of the body in more conventional clothing system. Un-structured, variable space posited between the body and clothes, participation of the wearer, attention to recent technology and material, and absence of gender identification characterizes the planarization of the body in Japanese avant-garde fashion. The absence of body in fashion stresses a will-to-form rather than mere bodily proportion and structure, which explores trans-extensity that goes beyond the boundary of the body Ultimately, planarization of the body betrays the correspondence between signifiant and signifie in sartorial convention. Aesthetic ideal of the body is visualized in the form of a dress. Some clothes prioritize the body, particularly the feminine bodily curves, while others focus on the clothing itself as abstract and sculptural forms. Fashion continues to explore forms and images that transcend the traditional representations of the clothed body. As a type of intimate architecture, fashion always mediates the dialogue between clothes and body, or fashion and figure. My study suggests a framework to analyze bodily representation in Japanese avant-garde fashion, focusing on the relationship between the clothes and body.

Hydrogen production from the natural gas steam reforming over Ni-coated metal structured catalyst (Ni 촉매가 코팅된 금속 구조체를 적용한 천연가스 수증기 개질 반응에서의 수소 생산)

  • Choi, Eunjeong;Koo, KeeYoung;Jung, UnHo;Rhee, YoungWoo;Yoon, WangLai
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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    • pp.230.2-230.2
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    • 2010
  • 천연가스 수증기 개질 반응에 사용되는 펠릿 촉매의 단점인 열 및 물질 전달 제한, 낮은 effectiveness factor, 압력강화와 channeling 등의 문제점을 해결 하고자 모노리스 형태의 금속 구조체 촉매를 본 연구에 적용 하였다. Fecralloy 재질의 금속 구조체에 Ni 촉매를 워시코팅 (wash coating) 하여 제조 하였으며, 이를 천연가스 수증기 개질 반응에 적용하여 수소를 생산하였다. 실험 조건으로는 S/C ratio를 3으로 고정하여 온도를 $600^{\circ}C{\sim}800^{\circ}C$로 변화 시켰으며, GHSV $3000{\sim}30000h^{-1}$에서 진행 되었다. 구조체 촉매 코팅에 사용된 Ni 촉매의 BET, TPR, H2-chemisorption, SEM, EDS의 특성분석을 수행 하였다. 온도별 테스트에서 모노리스 형태의 금속 구조체 촉매가 펠릿 형태의 촉매에 비해 우수한 열전달 효과로 인해 낮은 퍼니스 온도와 높은 반응 활성을 나타내었으며, GHSV 변화에 따른 성능평가 결과도 15wt% $Ni/MgAl_2O_4$펠릿 촉매와 비교하여 금속 구조체 촉매가 높은 활성을 보였다.

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Hydrogen production from natural gas steam reforming over metal structured catalyst with various geometries (다양한 형상의 금속 구조체 촉매를 이용한 천연가스 수증기 개질반응으로부터 수소생산)

  • Koo, Kee Young;Choi, Eun Jeong;Joo, Hyunku;Jung, Un Ho;Yoon, Wang Lai
    • 한국신재생에너지학회:학술대회논문집
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    • 2010.06a
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    • pp.224.1-224.1
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    • 2010
  • 본 연구에서는 천연가스 수증기 개질반응에 니켈 촉매가 코팅된 금속 구조체 촉매를 적용하여 수소를 생산하였다. 금속구조체 촉매는 기존 펠릿 촉매가 충진 된 촉매반응기에 비해 열 및 물질 전달 특성이 우수하여 이를 여러 개질반응에 적용하고자하는 연구가 수행되어 왔다. 하지만, 기존 금속구조체 촉매의 개발에 있어 촉매와 금속 지지체간의 안정한 결합을 통한 열안정성 확보에 대한 문제는 여전히 해결과제로 남아 있다. 따라서, 본 연구에서는 니켈 촉매를 금속 지지체에 안정하게 부착하기 위한 금속 지지체 표면 처리 방법을 개발하였으며 금속 구조체의 형상에 상관없이 균일한 표면처리가 가능하였다. 개발된 표면 처리방법을 적용한 금속 구조체 촉매는 촉매와 금속지지체간의 결합력 향상으로 인해 120시간 이상 안정한 반응활성을 보였다. 또한, 빠른 공간속도에서도 펠릿촉매와 표면처리를 적용하지 않은 금속 구조체 촉매에 비해 높은 촉매 활성을 보였다. 뿐만 아니라, 본 연구에서 개발된 표면처리를 모노리스와 폼을 비롯한 다양한 형상의 금속구조체 촉매에 적용하여 기하학적 표면 특성에 따른 촉매의 활성 차이를 살펴보았다. 겉보기 표면적이 넓은 금속구조체일 수록 촉매의 고분산 코팅에 유리하여 높은 활성을 보였다.

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Impact of Direct Structured Instruction for Students with Learning Disabilities on Engineering Physics Concepts (공대 물리학 교육에서 학습장애자에 대한 직접교수법의 효과)

  • Hwang, Un-Hak
    • Journal of Practical Engineering Education
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    • v.14 no.1
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    • pp.19-25
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    • 2022
  • This study examined the impact of direct structured approach of students who demonstrate little or no sense of basic engineer concepts in physics courses. This direct structured instruction is one of the methodologies that focuses on explicit and systematic practices in which an instructor set clear learning outcomes and clarifies the direction of the instruction. 90 participants were randomly selected and tested on the areas of problem-solving skills, reasoning, working memory, and processing speed. 20% of the participants were found to be students with basic engineering disabilities. On the other hand, in the direct structured group, 51.7% and 58.0% of the sample group (90 students) showed a 6.3% increase from the mid-term to final examinations, respectively. The subgroups with 50% or lower grades were decreased from 26.7% to 24.5%. However, five students with the lowest grade of 20% were selected as students with learning disabilities in the study and the average scores of mid-term and final exams were increased by 8.6%, which was 17.9% and 26.5%, respectively at the end of the study. As a result, it showed that direct structured approach for students with learning disabilities in the engineer concepts was effective.

An Inquiry into the Case Study on the Intoroduction and Practical Application of the Objectives Management System (목표관리제도(目標管理制度)의 도입(導入)과 실제적운용(實際的運用)에 관한 사례연구(事列硏究))

  • Yun, Yong-Un
    • Journal of Korean Society for Quality Management
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    • v.7 no.1
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    • pp.41-50
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    • 1979
  • The purpose of this study is to examine the introduction and its application of objectives management system in practical case, This study attempts to describe, (1) the relationships between the objectives management and budget management (2) analyzed the introduced organization and applicable system for the performance of objectives. Concepts of objectives, as this study is adjusted as follows; i) Objectives must be operational. They must be capable of being converted into specific targets and specific assignments. Therefore, objectives are the basis for work and assignments; they determine the structure of the business, the key activities which must be discharged, and, above all, the allocation of people to tasks. ii) Setting objectives for investment requires also objectives for the structure, basic policies, jobs, and directions of the business itself. They are not selling objectives; They are genuine marketing objectives, and as such have to be built into the way the business itself is set up, directed, structured, and run.

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Fuzzy Neural Network-Based Noisiness Decision of Road Scene for Lane Detection (퍼지신경망을 이용한 도로 씬의 차선정보의 잡음도 판별)

  • Yi, Un-Kun;Baek, Kwang-Ryul;Kwon, Seok-Geon;Lee, Joon-Woong
    • Proceedings of the KIEE Conference
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    • 2000.11d
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    • pp.761-764
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    • 2000
  • This paper presents a Fuzzy Neural Network (FNN) system to decide whether or not the right information of lanes can be extracted from gray-level images of road scene. The decision of noisy level of input images has been required because much noises usually deteriorates the performance of feature detection based on image processing and lead to erroneous results. As input parameters to FNN, eight noisiness indexes are constructed from a cumulative distribution function (CDF) and proved the indexes being classifiers of images as the good and the bad corrupted by sources of noise by correlation analysis between input images and the indexes. Considering real-time processing and discrimination efficiency, the proposed FNN is structured by eight input parameters, three fuzzy variables and single output. We conduct much experiments and show that our system has comparable performance in terms of false-positive rates.

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Developing Trend of an Ubiquitous Interface Technologies (유비쿼터스 인터페이스 기술의 개발 동향)

  • Lee, Hyeon-Jae;O, Chang-Heon
    • 한국디지털정책학회:학술대회논문집
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    • 2005.11a
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    • pp.299-311
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    • 2005
  • This article introduces developing trends of an "Ubiquitous Interface" as an access method for use of various network resources, such as public wireless networks and un-licensed wireless networks in ubiquitous sensor network environments, without troublesome settings or operations by users. "Ubiquitous Interface" is include a relatively wide sense meaning not only physical interface of specified device or between processors, but anything method for access USN. These "Ubiquitous Interface" able to provide seamless services that adapt autonomously to the user's movements and changes in the state of wireless resources. Recently, strongly recommended candidates are RFID, NFC, Multi-mode mobile terminal, Wearable computer and OSGi for integrated digital home networking system as a future ubiquitous interface. These candidates are have to have flexibility and multiple physical communication channel for seamless service hand over and serve easy connection at huge USN to user. And, must have flexible software structure and multi-functional middleware. Consequently, for more enhance performance of an ubiquitous interface and developing, need more structured and integrated future plan.

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